Threaded Inserts for Wood 1/4-20 Furniture Screw in Threaded Insert Nuts 20mm Length Pack of 40

1/4-20 Wood Threaded Inserts
✔️ Pack of 40 - For Soft & Hard Wood - 20mm Length

This 40-pack of 1/4"-20 wood threaded inserts is just what you need for reliable and repeatable threaded joints in softwoods, plywood, MDF, and hardwoods. They're 20mm long and come with a 6mm Allen key for quick install. Just drill a pilot hole, twist 'em in, and you're good to go.

✅ Thread Size: 1/4"-20 UNC
✅ Insert Length: 20mm
✅ Outer Thread Diameter: 0.410" (10.4mm)
✅ Insert Body Diameter: 0.315" (8mm)
✅ Flange Head Diameter: 0.461" (11.7mm)
✅ Allen Key Included: 6mm
✅ Pack Size: 40 Inserts

💡 What's the best drill bit size for 1/4-20 threaded inserts in wood?
It depends on the wood type. Here's your cheat sheet:

• In softwood: try 8.5mm, 9mm, or 3/8" drill bits

• In hardwood: go with 3/8", 9.5mm, or 10mm bits

• Always test-fit before full install, tight but not splitting is ideal

Perfect for furniture builds, cabinet installs, speaker boxes, or any DIY where machine screws need to bite into wood strong. Make your threads last, grab this set and keep it on hand!